A Risk Teens Cannot Afford to Take


When parents think about impaired driving, alcohol is usually the first concern. But marijuana is increasingly a factor in fatal and serious crashes, especially among young drivers. As legalization debates continue, it’s critical to understand how marijuana impairs driving ability and why prevention starts with clear family rules.



How Marijuana Impacts Driving

THC, marijuana’s main psychoactive component, affects parts of the brain that control reaction time, coordination, and judgment — all essential for safe driving. Even small amounts of THC can impair driving-related skills:

  • Delayed Reaction Times: Drivers under the influence of marijuana may take longer to respond to unexpected events, like a child crossing the street.

  • Impaired Coordination: Marijuana use affects motor skills, making it harder to stay in the lane or judge distances.

  • Reduced Attention: THC impacts the ability to multitask and maintain focus, both critical while driving.

The Evidence

  • A National Highway Traffic Safety Administration (NHTSA) study shows that marijuana use roughly doubles the risk of a motor vehicle crash.

  • Data from states that have legalized marijuana reveal increases in traffic fatalities where drivers tested positive for THC.

  • Teens, as inexperienced drivers, are especially vulnerable to these impairments.

Why Teens Are at Risk

Teens often believe marijuana doesn’t impair driving the way alcohol does. In fact, some even believe it improves focus — a dangerous myth. Combined with inexperience and peer pressure, these misconceptions create deadly risks on the road.

What Parents Can Do

  1. Set Clear Rules: Driving under the influence of any substance is unacceptable. Put it in writing with a family driving agreement.

  2. Model Safe Behavior: Never drive after using substances, even alcohol in small amounts. Teens learn from what you do more than what you say.

  3. Offer Safe Rides: Create a no-questions-asked policy so teens will always call if they or their friends have been drinking or using marijuana.

  4. Educate About Consequences: Explain the legal penalties for driving under the influence — including license suspension, fines, and criminal records.

Local Connection

For a rural county like Lemhi, long stretches of road and limited public transport mean driving is essential. Impairment puts not only the driver at risk, but passengers, neighbors, and families on the road.

Driving under the influence of marijuana is impaired driving — period. Parents and communities must make it clear that “buzzed” or “high” driving is never safe. By addressing the myths and setting firm boundaries, we can keep Salmon’s roads safer for everyone.

Sources

  • National Highway Traffic Safety Administration (NHTSA). (2022). Marijuana-Impaired Driving.

  • Centers for Disease Control and Prevention (CDC). (2021). Teen Driving Data.

  • Governors Highway Safety Association (GHSA). (2022). Drug-Impaired Driving Report.

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